Choose the option that allows you and your family the most peace of mind.
First alert smoke detector battery change.
Open the battery drawer.
The first step is to remove the smoke alarm from the mounting bracket.
At first alert we offer 10 year smoke alarms that have a built in 10 year battery which eliminates the need for battery replacements for the life of the alarms.
Look at your 9v battery to identify the positive and negative contacts similar to what is shown in the image.
We also offer hardwire alarms with a battery backup for protection during power outages.
Use the plastic tab to gently open the battery compartment.
How to replace a 9v battery.
Deactivate the bracket lock use a flathead screwdriver and place it in between the unit s mounting bracket and the mounting bracket pin.
Press and hold the test reset button for 10 seconds to fully discharge the detector.
Insert the new batteries and make sure the contact points are.
At first alert we are committed to creating reliable products that help protect your home and family.
The battery in 10 year alarms last for the life of the alarm eliminating the need for battery replacements.
The national fire protection association nfpa recommends changing the batteries in your smoke alarm every 6 months.
What smoke alarm do you have.
How to change batteries in first alert alarms number of views 45 18k minimum installation requirements for models 1042135 or 1042136 onelink smart smoke co alarm.
Buy a 10 year sealed battery smoke alarm.
These alarms also have an end of life warning to remind you to replace the alarm after 10 years.
Remove the old batteries.
Remove the old battery.
How to replace an alarm battery.